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首页> 外文期刊>Journal of Molecular Liquids >Improved inkjet printability of dye-based inks through enhancing the interaction of dye molecules and polymer nanospheres
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Improved inkjet printability of dye-based inks through enhancing the interaction of dye molecules and polymer nanospheres

机译：通过增强染料分子和聚合物纳米球的相互作用，改善了基于染料的油墨的喷墨印刷性

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Inkjet printability of dye-based inks including stability, jetting morphology, and color performance is difficult to maintain due to the strong dye molecular interaction. Herein, carboxyl-rich polymer nanospheres were introduced to the dye-based inks, forming a novel kind of multilayer dye/polymer nanospheres to enhance the inkjet printability. Disperse dyes were firstly loaded into poly (styrene-butyl acrylate-methacrylate) nanospheres at 95 degrees C, and then encapsulated by poly (styrene-methacrylate) polymer layer through seed polymerization to form multilayer structure. The results showed that hydrogen bonds were formed between disperse dyes and nanospheres, and the interaction was enhanced when more carboxyl groups were polymerized on nanosphere surface. Moreover, due to the high surface carboxyl group content, the stability was significantly improved in comparison with disperse dye suspension. After inkjet printing, the dye/nanosphere dispersion showed more stable droplet formation and higher color depth. Besides, because of the self-curing ability of polymer nanospheres, satisfactory fastness was obtained for practical application. The results from this study can promote the optimization of dye-based ink formulations, and show great potential in obtaining high quality inkjet printing products. (C) 2020 Elsevier B.V. All rights reserved.
机译：由于染料分子间的强烈相互作用，染料基油墨的喷墨适性（包括稳定性、喷射形态和颜色性能）很难保持。在此，将富含羧基的聚合物纳米球引入染料基油墨中，形成一种新型的多层染料/聚合物纳米球，以增强喷墨打印适性。分散染料首先在95℃下负载于聚（苯乙烯-丙烯酸丁酯-甲基丙烯酸酯）纳米球中，然后通过种子聚合被聚（苯乙烯-甲基丙烯酸酯）聚合物层包裹，形成多层结构。结果表明，分散染料与纳米球之间形成氢键，当更多羧基聚合到纳米球表面时，相互作用增强。此外，由于表面羧基含量较高，与分散染料悬浮液相比，稳定性显著提高。喷墨打印后，染料/纳米球分散液显示出更稳定的液滴形成和更高的颜色深度。此外，由于聚合物纳米球的自固化能力，在实际应用中获得了令人满意的牢度。本研究的结果可以促进染料基油墨配方的优化，并显示出获得高质量喷墨打印产品的巨大潜力。（C） 2020爱思唯尔B.V.版权所有。

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